95735 20240410085606.0 doi 10.1016/j.physa.2019.123169 sideral 113775 ART-2020-113775 eng Beyza Bravo, Jesús Universidad de Zaragoza (orcid)0000-0003-3992-4393 Assessing the criticality of interdependent power and gas systems using complex networks and load flow techniques 2020 Access copy available to the general public Unrestricted Gas and electricity transmission systems are increasingly interconnected, and an attack on certain assets can cause serious energy supply disruptions, as stated in recommendation (EU) 2019/553 on cybersecurity in the energy sector, recently approved by the European Commission. This study aims to assess the vulnerability of coupled natural gas and electricity infrastructures and proposes a method based on graph theory that incorporates the effects of interdependencies between networks. This study is built in a joint framework, where two different attack strategies are applied to the integrated systems: (1) disruptions to facilities with most links and (2) disruptions to the most important facilities in terms of flow. The vulnerability is measured after each network attack by quantifying the unmet load (UL) through a power flow analysis and calculating the topological damage of the systems with the geodesic vulnerability (v) index. The proposed simulation framework is applied to a case study that consists of the IEEE 118-bus test system and a 25-node high-pressure natural gas network, where both are coupled through seven gas-fired power plants (GFPPs) and three electric compressors (ECs). The methodology is useful for estimating vulnerability in both systems in a coupled manner, studying the propagation of interdependencies in the two networks and showing the applicability of the v index as a substitute for the UL index. info:eu-repo/grantAgreement/ES/MINECO/ENE2016-77172-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.263 2020 PHYSICS, MULTIDISCIPLINARY 28 / 84 = 0.333 2020 Q2 T2 0.64 2020 Statistics and Probability 2020 Q2 Condensed Matter Physics 2020 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Ruiz Paredes, Héctor Francisco García Paricio, Eduardo Universidad de Zaragoza (orcid)0000-0003-2457-0422 Yusta Loyo, José María Universidad de Zaragoza (orcid)0000-0003-3174-9703 5009 535 Universidad de Zaragoza Dpto. Ingeniería Eléctrica Área Ingeniería Eléctrica 540 (2020), 123169 [15 pp.] Physica, A Physica A: Statistical Mechanics and its Applications 0378-4371 3452144 http://zaguan.unizar.es/record/95735/files/texto_completo.pdf Postprint 369277 http://zaguan.unizar.es/record/95735/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:95735 articulos driver 2024-04-10-08:43:00 ARTICLE